july: LION'S MANE JELLYFISH

The lion's mane jellyfish is known for being the largest type of jellyfish. the biggest recorded specimen's bell's size was 210 centimetres (7 feet) and it's tentacles were 36.6 m (120 ft) long (according to wikipedia.org). The jellyfish probably got it's name after their long poisounos mane-like tentacles, which they capture their prey with.

september: PHANTOM JELLYFISH

Phantom jellyfish is like a vast misterious lady, floating through the midnight zone elegantly. Scientists know very little about these creatures, since throughout history they've only shown themselves to humans a very few times. For now phantom jellyfish are known for their extraordinarily huge size. to its large bell, that can reach more than 1 meter in size is connected 4 extremelly long arms, each of them resembling a long grey curtain.

august: FLAME JELLYFISH

This is one of the subspecies of jellyfish that is safe for humans to eat. In South-Asia edible jellyfish is considered a delicacy.
Flame jellyfish prefer warm waters with lower salinity, so in China people even started breeding them in ponds.
They are named after their red arms, which apparently reminded scientists of flames.

october: DINNER PLATE JELLYFISH

Dinner plate jellyfish are unique because while most jellyfish usually just nonchalantly float around in the ocean waiting for their meals to pass by them, these sea-jellies are actually actively hunting for something they can put on their dinner-plates. (haha funny joke, be amazed by immaculate sense of humor)